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MEASUREMENT SAMPLE
RATE
17
On
initial
switch-on the
instrument
will
sample
signals at
the
optimum
rate.
However,
the
user
can
slow
the
sample
rate
down
using
the
SAMPLE
function, (Ref.
B19). This
sets
the
'dead time'
between
readings
and
hence
controls
the
sample
rate.
Setting
and
Using
the
Sample Rate
18
To
alter
the
sample
rate,
send
the
command "SAMPLE
x", (Ref.
Bl9).
This
enters the
sample
rate into the
SAMPLE
register
and
is
used immediately.
NOTE:
"x"
is
a
number
entered
to set
the
maximum
sample
rate. If
zero
is
entered, the
counter
will
run
at
maximum
speed compatible with the
system
set-up.
Interrogating the
Sample Rate
19
To
display the
sample
rate at
the
controller,
send
the
command
string
''SAMPLE?",
(Ref.
B26).
MULT
FUNCTION
20
This function
is
used
to
display
(at
the
controller)
the input signal multiplied
by
the
number
held in the
MULT
(Multiply)
register,
(Ref.
B18). This function
can be
used,
for
instance,
to
display the
true
frequency reading
of
a signal source
that
has
been
divided or multiplied
before
being sampled by
the
instrument.
Setting the Multiplier
21
To
store
a
multiplier
for later
use,
send
the
command
"MULT
x", (Ref.
B18).
NOTE:
"x"
is
a
number
entered
to set
the
multiplier.
Enabling
the Multiplier
22
To
enable the
stored multiplier,
send the
command
"MULT
ON",
(Ref.
Bl8).
23
To
disable the
MULT
function
send
"MULT
OFF".
Interrogating the Multiplier
24
If
necessary
the stored multiplier
can be
displayed
at the controller
by sending
the
command
"MULT?",
(Ref.
B25).
2151
OPS
A1571/DA
4-7
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